In Nantes, France's largest slave port, the descendant of a slave-trading family has joined forces with a man whose ancestors were enslaved to help repair the enduring legacy of slavery from the grassroots up.
It’s late morning on a windy day in early May on the quayside in Nantes, western France. Cloudy skies promise rain. But an 18-metre high wooden mast, overlooking the Loire river, stands out like a beacon.